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A magnum velocity air rifle at 1250 feet per second with a .22 alloy pellet, the Octane is one of the first two break barrel rifles introduced under the Umarex brand. The Octane incorporates both a gas piston and a noise dampener. This gun is unique in that its gas piston operates in reverse of other gas pistons on the market. Termed the ReAxis Reverse-Axis Gas Piston, it has shown to provide an increase in velocity. Its SilencAir is a non-removable suppressor with five chambers that greatly reduce muzzle noise. The Octane also comes with a 3-9x40 scope, all-weather stock, and adjustable 2-stage trigger.